{"system":"GoGuides Trust Evaluate","api_version":"evaluate-v3.2","source":"goguides","license":"https://www.goguides.com/data-license","license_version":"1.0","query":"stack.com","query_normalized":"stack.com","self_url":"https://www.goguides.com/evaluate.php?domain=stack.com","signal_url":"https://www.goguides.com/signal.json","trust_id":"GG-1713058731","favicon_seed":"5541b1810a8d463e","favicon_url":"https://www.goguides.com/favicon_img.php?u=stack.com&s=32","observed":true,"known_to_queue":false,"trust_state":"observed","lookup_type":"domain_match","public_eligible":true,"profile_allowed":true,"favicon_allowed":true,"policy_status":"allowed","status":"allowed","ai_rank":85,"grade":"A+","trust_confidence":0.85,"confidence":0.85,"source_type":"commercial","summary":{"visibility_state":"public","ai_usage_level":"trusted_reference_candidate","trust_level":"public_eligible","trust_confidence":0.85,"recommendation":"Eligible for public trust display and limited machine use.","last_seen":"2026-08-20 11:38:01","bot_hit_count":1,"trust_measurement_count":1},"machine_use":{"version":"1.0","status":"observed_not_verified","read":true,"summarize":true,"cite":false,"recommend":false,"transact":false,"sensitive_advice":false,"decision":"readable_observed_not_verified","basis":["known_to_goguides","publicly_eligible","policy_allowed","stable_trust_id","fresh_record"],"limits":["not_verified_active_record","citation_not_cleared","recommendation_not_cleared","autonomous_transaction_not_cleared","sensitive_advice_not_cleared","claims_not_independently_verified"]},"documentation":{"white_paper_url":"https://www.goguides.com/white-paper.php","pdf_url":"https://www.goguides.com/whitepapers/goguides-ai-source-clearance-white-paper.pdf","verified_text_url":"https://www.goguides.com/verified-text.php?q=gravity&format=json","verified_text_note":"Live verified-text topic lookup for hallucination-resistant citation workflows, with source attribution, license metadata, machine-use guidance, hash scope, previews, and canonical full-record URLs."},"verification":{"status":"unverified"},"crawl_status":{"state":"observed"},"activity_signal":{"recently_observed":true,"bot_hit_count":1,"observation_count":1,"bot_count":1,"last_seen":"2026-08-20 11:38:01"},"freshness":{"state":"Fresh","last_crawl_days":5},"last_crawled_at":"2026-08-14 23:15:44","signal_last_changed_at":"2026-08-14 23:15:44","first_seen":"2026-08-14 23:24:39","last_observed":"2026-08-14 23:24:39","record_freshness_label":"Fresh","days_observed":0,"trust_record_age":5,"trust_measurement_count":1,"observation_count":1,"observation_span":"0 days across 1 observations","stability_window":5,"current_trust_state_since":"2026-08-14 23:24:39","days_since_last_change":5,"rank_algo_state_changes":0,"trust_record_fingerprint":"0bb629aac5734831820d046e92443a73169b70f5aacb5abbf5afdcd5fe616ca3","provenance":{"scope":"objective_web_state_v2","collector":"GoGuidesCrawler","summary":{"stored_state_count":1,"observation_count":1,"first_observed_at":"2026-08-14 23:15:44","last_observed_at":"2026-08-14 23:15:44","changes":{"content":0,"robots":0,"dns":0,"tls_certificate":0,"final_url":0}},"current":{"observation_kind":"full_fetch","requested_url":"https://stack.com/","final_url":"https://www.browserstack.com/","http_status":200,"redirect_count":1,"content_type":"text/html; charset=UTF-8","response_bytes":586918,"canonical_url":"https://www.browserstack.com","page_title":"Most Reliable App & Cross Browser Testing Platform | BrowserStack","robots":{"allowed":true,"reason":"robots_unreachable_allowed","meta_robots":"index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"},"dns":{"public_ips":["34.225.8.100"],"nameservers":["ns-1090.awsdns-08.org","ns-1621.awsdns-10.co.uk","ns-300.awsdns-37.com","ns-786.awsdns-34.net"],"dns_sha256":"cd0b98cb49a860a2a685885f2c6327b6a548fa8c56ddd8ad5006d428e44d703c"},"tls":{"certificate_sha256":"a6c0f241dbdd956bc86dd64b8396d707d3d45706f7de81c4c7a4415523d20ded","issuer":"CN=YR1,O=Let's Encrypt,C=US","valid_from":"2026-07-11 23:06:59","valid_until":"2026-10-09 23:06:58"},"hashes":{"content_sha256":"09a457c33ee58f848bf3e2b62a0afd0c0b75eb972469824df2d214de4135f4b4","html_sha256":"b66a357cf0fd35c1590a6f4c8a88e72f5fc9e442b15b6c15136026711c3eceaf","provenance_sha256":"002c39234d3250460880ccc417f656f8048e216765519c401e088669110ee1d7"},"first_observed_at":"2026-08-14 23:15:44","last_observed_at":"2026-08-14 23:15:44","observation_count":1}},"gate":{"status":"allowed","policy_status":"allowed","public_eligible":true,"profile_allowed":true,"favicon_allowed":true,"ai_rank":85,"grade":"A+"},"matched_domain":"stack.com","matched_url":"https://stack.com/","history_url":"https://www.goguides.com/history/stack.com","verify_url":"https://www.goguides.com/verify/stack.com","result":{"status":"known","host":"stack.com","canonical":"https://stack.com/","known":{"url":"https://stack.com/","ai_rank":85,"grade":"A+","fetched":"2026-08-14 23:15:44","source_type":"commercial"}},"ts_utc":"2026-08-20T15:38:01Z"}